body mass index

noun

: a measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters

Examples of body mass index in a Sentence

A person with a body mass index of more than 30 is considered to be obese.
Recent Examples on the Web In fact, research shows waist circumference may be as important as body mass index (BMI)—the ratio of weight to height that can indicate obesity—for predicting disease risk and overall health status. Elizabeth Woolley, Verywell Health, 9 Apr. 2024 Acetaminophen exposure was more common among children born to parents in a lower socioeconomic class, with a higher early pregnancy body mass index, those who smoked during pregnancy and those with diagnoses of psychiatric disorders or neurodevelopmental conditions. Mira Cheng, CNN, 9 Apr. 2024 See all Example Sentences for body mass index 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'body mass index.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of body mass index was in 1983

Dictionary Entries Near body mass index

Cite this Entry

“Body mass index.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/body%20mass%20index. Accessed 29 May. 2024.

Kids Definition

body mass index

noun
: a measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters

Medical Definition

body mass index

noun
: a measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters
a body mass index in adults of 25 to 29.9 is considered an indication of overweight, and 30 or more an indication of obesity
abbreviation BMI

called also Quetelet index

More from Merriam-Webster on body mass index

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